74693897013 has 4 divisors (see below), whose sum is σ = 99591862688. Its totient is φ = 49795931340.

The previous prime is 74693897011. The next prime is 74693897023. The reversal of 74693897013 is 31079839647.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31079839647 = 3 ⋅10359946549.

It is not a de Polignac number, because 74693897013 - 2¹ = 74693897011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74693897011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12448982833 + ... + 12448982838.

It is an arithmetic number, because the mean of its divisors is an integer number (24897965672).

Almost surely, 2^74693897013 is an apocalyptic number.

It is an amenable number.

74693897013 is a deficient number, since it is larger than the sum of its proper divisors (24897965675).

74693897013 is a wasteful number, since it uses less digits than its factorization.

74693897013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24897965674.

The product of its (nonzero) digits is 6858432, while the sum is 57.

The spelling of 74693897013 in words is "seventy-four billion, six hundred ninety-three million, eight hundred ninety-seven thousand, thirteen".